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ETH1-1346A is a 100Ω quadrax crimp socket contact from SOURIAU

The ETH1-1346A is a 100Ω quadrax crimp socket contact from SOURIAU (Eaton), designed for high-speed data transmission in harsh environments. It is EN 3155-075 qualified, rear-release, and rated for up to 150°C operationE

Core Function

The ETH1-1346A is a four-conductor (quadrax) socket contact optimized for differential signaling, enabling:

Dual Full-Duplex Transmission: A single quadrax contact replaces two twinax contacts, supporting simultaneous bidirectional data flow for protocols like Gigabit EthernetEaton.
High-Speed Signal Integrity: Maintains 100Ω characteristic impedance with ISO/IEC 11801 Cat 6 compliance, ensuring:
- NEXT (crosstalk) > 46 dB at 250 MHz
- Return loss > 16 dB at 250 MHz
- Shield effectiveness > 36 dB at 80 MHzEaton
Robust Physical Interface: Features gold-plated contacts over nickel for low resistance, with initial contact resistance < 15 mΩ and < 30 mΩ after environmental testingEaton.
Harsh-Environment Compatibility: Withstands -65°C to 150°C temperature range and integrates with MIL-DTL-38999/EN2997/EN3646 circular connectors via standard #8 cavity compatibilityEaton.
Rear Release: Facilitates field replacement without disassembling the connector shellEaton.

Key Technical Specifications

Parameter	Value
Part Number	ETH1-1346A
Type	Quadrax crimp socket contact
Norm	EN 3155-075 qualified
Impedance	100Ω
Release Type	Rear release
Max Temperature	150°C
Contact Plating	Gold over nickel
Contact Resistance	Initial < 15 mΩ; after tests < 30 mΩ
Dielectric Withstanding Voltage	500 Vrms (sea level); 125 Vrms (21,000 m)
Insulation Resistance	> 5000 MΩ (ambient); > 1000 MΩ (high temp)
Cable Compatibility	AWG 22–26 (star quad cable recommended)
Shielding	High shield effectiveness (> 36 dB at 80 MHz)
Compliance	ISO/IEC 11801 Cat 6; EN 3155